Electromagnetic separator.



C. T. HENDERSON.

ELECTROMAGNETIC SEPARATOR.

APPLICATION FILED JUNE 20.1914.

1,245,71 7. Patented Nov. 6, 1917.

UNITED STATES PATENT oEEIoE.

CLARK 'r. HENDERSON, or MILWAUKEE, wIscONSIN, ASSIGNOR, BY MEsNE ASSIGN-MENTS', ro THE CUTLER-HAMMER M G. 00., or MILWAUKEE, WISCONSIN, A. con-PORATION OF WISCONSIN.

ELECTROMAGNETIC SEPARATOR.

Specification of Letters Patent.

Patented Nov. 6, 1917.

Application filed June 20, 1914. Serial No. 846,292.

To all whom it may concern:

' Be it known that I, CLARK T. HENDERSON, a citizen of the UnitedStates, residing at Milwaukee, in the county of Milwaukee and State ofWisconsin, have invented new and useful Improvements in ElectromagneticSeparators, of which the following is a full, clear, conclse, and exactdescription, reference being had to the accompanying drawing, forming apart of this specification.

This invention relates to electromagnetic separators.

One of the objects of the invention is to provide improved means forextracting free magnetic particles from flowing substances.

A further Object is to provide an improved electro-magnetic separatorwherein the material treated flows in a directionparallel to the linesof magnetic flux and wherein the poles of the magnet present a largearea for attracting and collecting the magnetic content.

Further objects and advantages will appear hereinafter in connectionwith the description of the accompanying drawing, which illustrates,partially in section, an embodiment of the invention designed moreparticularly for removing magnetic particles suspended in fluids, suchas slip used in the manufacture of china, pottery and porcelain.

The device comprises, in general, a magnet winding 1 coiled about atubular sleeve 2 which constitutes a passage for the material treatedand which is provided with two or more transversely disposed aperturedmembers magnetized when the winding is energized. The members 3 areSpaced along the interior of the sleeve and are provided with numerousopenings extending in a direction parallel to the flow of the materialtreated and to the magnetic lines of force. The faces of members 3 alsoalternate in polarity so that, in efiect, the device includes two ormore subsidiary magnets all induced by the large winding 1.

Referring more specifically to the drawing, the Same shows the winding 1wound on a central sleeve 2 of non-magnetic material and inclosed in amagnetic iron frame 4. The frame 4 comprises similar sections boltedtogether and located axially of the sleeve 2 by exterior flanges on thelatter. The ends of the sleeve are preferably extended beyond the endsof the winding and are provlded with threaded reducing bushmgs 5 whichenable the device to be connected in a pipe line. The apertured members3 span the, sleeve 2 and are supported therein between alternatemagnetic rings 6 and non-magnetic rings 7. The rings 6, 7 and themembers 3 are retained within the sleeve between a shoulder 8 at one endof the latter and a threaded tap 9 at the other. The apertured members 3preferably comprise relatively coarse Wire screens or perforated metalplates. It is to be understood, however, that other forms of magneticmembers may be employed, if desired.

The device is designed to be installed in upright position and connectedwith the flllld supply so that the latter enters the lower end of thesleeve 2 and emerges from the device at its upper end. In this mannerthe flow of the liquid is substantially uniformat all points within thesleeve, and contact of the material with some exposed portion of thescreens or plates 3 is practically insured. When the winding 1 isenergized the screens are strongly magnetized and attract the freemagnetic particles in the material and thus separate the same from theremainder of the flowing mass.

In operation, the material may be passed through the device until theaccumulation of the magnetic particles on the attracting screens orplates clogs the apertures in the latter to a degree Which impedesfurther passage of the material. The device may be readily cleaned,either by depriving the winding 1 of current and connecting the lowerbushing 5 to a waste pipe, and then flushing the sleeve by pouring waterinto the upper end thereof, or by removing the tap 9 andthen taking outthe screens and cleaning the same while removed.

What I claimv as new and desire to secure by Letters Patent is:

1. In an electromagnetic separator, in combination, an electromagneticwinding, a non-magnetic tubular member extending therethrough, a seriesof perforated magnetic members transversely spanning said tubular memberand means for removably securing said perforated members Within saidtubular member and for spacing the same within the field of saidWinding.

2. In an electromagnetic separator, in combination, a magnetic Winding,a magnetic frame therefor, a non-magnetic tubular member extendingthrough said Winding and said frame and constituting a passageway forthe flowing material to be treated, a series of magnetic screenstransversely spanning said tubular member and disposed Within the fieldof said Winding, and means for removably securing said screens Withinsaidtubular member and for spacing the same Within the field of saidWinding.

8. In an electromagnetic separator, in combination, an electromagneticWinding, a non-magnetic tubular member extending therethrough, a seriesof perforated magnetic members transversely spanning said tubular memberand disposed within tlre field of said Winding, a series of ringsarranged Within said tubular member for spacing said perforated membersand means for removably securing said rings and said perforated memberswithin said tubular member.

4. In an electromagnetic separator, in combination, an electromagneticWinding, a non-magnetic tubular member extending therethrough, aplurality of magnetic and non-magnetic rings alternately arranged Withinsaid tubular member, a plurality of perforated magnetic members spanningsaid tubular member and separatedby said rings and means for removablysecuring said rings and said perforated members Within said tubularmember.

5. In an electromagnetic separator, in combination, a magnetic Winding,a magnetic frame surrounding said Winding, a non-magnetic tubular memberextending through said Winding, means for connecting the ends of saidtubular member in a pipe line and a series of perforated magneticmembers transversely spanning said tubular member and disposed in aspaced relation Within the field of said Winding.

6. In an electromagnetic separator, in combination, a magnet Winding, amagnetic frame therefor, a non-magnetic sleeve extending through saidWinding and frame, a plurality of magnetic and non-magnetic ringsalternately arranged Within said sleeve, and a plurality of magneticmembers spanning said sleeve and separated by said rings.

7 In an electromagnetic separator, m

combination, a magnetwinding, a magnet frame therefor, a shoulderednon-magnetic sleeve extending through said Winding and frame, aplurality of magnetic and non-magnetic rings alternately arranged Withinsaid sleeve, a plurality of perforated magnetic members spanning saidsleeve and separated by said rings, and removable means for clampingsaid rings and members axially against the shoulder of saidisleeve.

8. In an electromagnetic separator, in combination, a non-magnetictubular member, a magnetic Winding surrounding the same, a magneticframe surrounding said tubular member and said Winding, said tubularmember having its ends projecting beyond said Winding and said frame toprovide portions for connecting the same in a pipe line and said framecomprising similar cylindrical sections separately removable axially ofsaid tubular member and independently of said Winding.

9. In an electromagnetic separator, in combination, a tubular member, amagnetic winding surrounding said member, a mag netic frame surroundingsaid tube and Winding, said frame comprising similar cylindri calsections separately removable axially of said tube and independently ofsaid Winding, and means for. determining the axial position of saidframe and Winding with respect to said member.

10. In an electromagnetic separator, in combination, a tubular member, amagnetic Winding surrounding said member, a magnetic frame surroundingsaid tube and winding, said frame comprising similar cylindricalsections separately removable axially of said tube and independently ofsaid Winding, and exterior flanges on said member for determining theaxial relation of said frame and Winding thereto.

In Witness whereof, I have hereunto subscribed my name in the presenceof tWo Witnesses.

CLARK T. HENDERSON. Witnesses:

ELIZABETH HAHM, O. H. BARNIoKEn.

